JP4627560B2 - LED lighting for tunnel lighting - Google Patents

Description

  The present invention relates to an illumination lamp using LEDs as illumination in a tunnel.

Recently, energy saving and prevention of global warming have been screamed, and lighting is changing from incandescent bulbs to fluorescent lamps, and is also changing to LEDs (light emitting diodes) that consume less power than fluorescent lamps and have a long life.
However, LEDs have problems such as inferior light intensity than fluorescent lamps and heat generation during light emission. However, as a result of many years of research, high-power LEDs have been developed and improved in all respects, and are being put to practical use for general lighting. This can power consumption as described above is small 30% of the fluorescent lamp, life sometimes long and 7 times the fluorescent lamps, only one, small but but inevitably the fluorescent lamp becomes energy saving target The absence of mercury contained contributes to the improvement of the environment.
JP 2005-183077 A Japanese Patent Application No. 2007-59356

However, although it is considered that it is suitable in all respects for energy saving as modern lighting, this LED has a drawback that cannot be solved yet. That is, the light range of the light emitted from the LED is narrow.
This means that, when used as an illuminating lamp in the tunnel, it illumination in the tunnel is to ensure the safety of the traffic lane constant brightness for traveling, and the road conditions (such as a curve) must be able to be confirmed It is. However, as described above, in the case of an LED, in addition to the narrow emission range from the light source, in the case of a tunnel, there is a possibility of uneven brightness on the road surface because there is a distance from the light source to the road surface. There was a risk of driving problems during driving.

In the original invention, and irradiates the running surface in the tunnel to solve this in uniform brightness is obtained by developing the aim of improving the global environment by utilizing the LED as a light source.

In the original invention, the illuminating body main body A group is separately placed on an inclined plate to form a built-in light source group B in the box body, and the box body is formed by protruding from the upper surface of the lid of the instrument. However, in such a configuration, the cover protrudes, which not only obstructs the cleaning of the tunnel, but also obstructs the driver's view. In addition, since the illuminator body A is separate, inconvenience is caused in the adjustment of this angle.

Accordingly, the present invention is obtained by adding an improvement in this respect, and several columns set to form a light source group B on ramp plate provided with an angle α illumination body A (5), the light source The group B is arranged in the box-shaped main body (10) so as to face in the vertical direction, and has the following configuration.
That is, the bottom plate is an uneven surface that has an evenly spaced recess, an even number of convex surfaces between them and fits in the same plane, and secures a space where the lighting body A with the inclined base plate can be installed on the convex surface. While forming a box-shaped main body , a flat tempered glass is fitted on the surface of the box-shaped main body, and a lid body that opens and closes in a single opening is provided in a watertight manner. In the length direction of each convex surface of each group of left and right halves from the center of the even number of convex surfaces of the main body of the main body, the length direction is equally spaced, and both the left and right groups are in the same inward direction. The illuminating body main body is constructed so that the inclination angles α of the inclined base plates for inward installation are regulated within a range of 20 to 25 °, respectively, and incorporated on the inclined base plates. A is provided with a high-power multichip LED at the bottom of a mirror-like mirror body The illumination lamp body A with an inclined base plate is arranged and fixed in an orderly manner, and the LED lamp for tunnel illumination has a configuration in which the illumination group B is formed by the plurality of illumination body bodies A.

Tunnel illumination lamp of the present invention by increasing the exposed surface of the back body by forming an uneven surface having a concave surface (7) between the lighting group B and B displayed on the box-shaped body (10) rear face, LED In addition to improving the heat dissipation effect of the heat generated from the ridge, and the concave and convex surfaces of the concavo-convex surface (7) are arranged vertically, not only the flow of water is improved during cleaning in the tunnel, but also the tunnel It is possible to reduce the adherence of dust in the inside and to help the trouble of cleaning.

On the surface of the box-shaped body (10), intended to provide the lid piece opening that inlaid a planar tempered glass (11) in a watertight manner, the way of cleaning this result to simplify the view in the tunnel All the points could be solved.

  Further, in the present invention, it is possible to correct a decrease in light amount due to deterioration of the LED by providing a light amount restoration circuit mechanism.

As described above, the present invention uses the LED emitter more to use the illumination in the tunnel, as compared with the illumination by the conventional fluorescent lamp can be very effective in protecting the global environment Therefore, it has become possible to reduce environmentally hazardous substances such as fluorescent lamp mercury.

When the accompanying drawings thus illustrate the present invention, FIG. 1 shows a front view of a tunnel lamp using LED of the present invention, which exhibits a box-shaped body (10) as a whole, 2 and 6 As shown in Fig. 5, a lid (11) having the same shape , the entire surface of which is made of tempered glass, is provided so as to be opened and closed.
The box-shaped body (10), the light source group B are housed consisting of illuminating body A to be described later, the cover (11), as shown in FIG. 6, it has become open and, and sealing from, and impossible entry of water by sprinkling washing in the tunnel.

FIG. 1 shows an LED lamp for tunnel illumination according to the present invention, in which an illuminating body main body A provided with a high-power multichip LED and a light source group B in which the illuminating body main bodies A are arranged in a row are vertical. Are arranged and installed. The lighting body A, referring to FIG. 5, a bowl shape which is formed in mirror body is arranged a high-performance LED emitter on the bottom of the (3) (1), inclined in which a tilt angle α A light source group B is formed in a row (six in the drawing) on the base plate (5).

Further, according to FIG. 1, a light source group B are arranged in a row is four rows arranged, two rows light source groups of the left, inside (center) of the box-shaped body (10) The right two rows of light source groups are also directed toward the inner side (center) of the box-shaped main body (10) so as to face each other.
Figure 2 shows a sectional view taken along line X-X of FIG. 1, FIG. 3 shows a Y-Y sectional view of Fig. 1, are both show the arrangement of the light source group B.

Figure 3 is a Y-Y sectional view of FIG. 1, as shown, to form an uneven surface formed from a concave between the light source group B and B (7), the heat generated from the lighting body A Dust generated in the tunnel not only improves the heat dissipation effect but also improves the flow of washing water used because the uneven surface (7) is arranged vertically with respect to the box-shaped body (10). Reduces the amount of sticking to the cleaning work.

FIG. 4 is a cross-sectional view taken along the line ZZ in FIG. 1 , and the light areas of the illuminating body main body A facing the right side and the illuminating body main body A facing the left side are mutual light areas. will form to cover, in the tunnel, supplement wide narrowness is a disadvantage of the LED, the portion R in particular the right and left lighting body a, the optical zone of a overlap, since it brightly illuminated, running this part The inclination angle α of the inclined base plate (5) is adjusted so that it touches the surface. Then, the inclination angle α as a result of study in the field, are 20 ° to 25 ° is suitable.

Although FIG. 4 shows the box-shaped body (10) in the horizontal direction for drawing, the present invention is a lamp in the tunnel, and is attached to the wall surface in the tunnel, so it can be mounted vertically or slightly downward. ing. Therefore, in consideration of this point, the light region emitted from the illuminator body A must be understood.

FIG. 5 is an enlarged detailed view of the illuminating body main body A, and the inner surface of the LED base (4) formed in a bowl shape is formed on the bottom of the mirror surface body (3) processed into a mirror surface. 1) is arranged. Then, the illumination body A is provided on, as shown in FIG. 4 described above, the platform providing the inclination angle α plate (5). Reference numeral (6) in the figure is a mirror cover for protecting the mirror surface (3).

FIG. 6 is an embodiment showing opening and closing of the lid (11), and a flat tempered glass (9) is provided on the lid. Reference numeral (14) in the figure denotes a hinge, which is convenient for inspection of a lamp and the like because it opens and closes as shown in the figure. Then, it is formed in a water-tight against the wash in the tunnel.

FIG. 7 is a mechanism diagram of the light quantity restoration circuit added to the tunnel illumination lamp of the present invention, in which the light quantity fluctuation of the lamp in the tunnel is detected by the PD, and the correction of the quantity of light for the fluctuation is fed back through the CPU. The constant current power supply is controlled based on the above. Therefore, when thus the amount of light LED degradation goes down, it actuates by increasing the current to compensate for this, an additional function of reducing the impact on the tunnel.

The many Japanese roads mountains There are a number of tunnel, in particular in the tunnel of the highway Yes to a number of the lamp for lighting is provided in order to protect the traffic safety, the fluorescent lamp is used to this . The fluorescent lamp to be able to thus save energy exchanged for LED, since the reduction of CO ₂ to be discharged, will be nearly ideal environment is obtained, the utility value of the present invention is great.

Front view of the lamp of the present invention XX sectional view of the lamp of the present invention YY sectional view of the lamp of the present invention 1Z-Z sectional view showing the main part of the present invention Sectional view of illuminator A Example diagram showing opening and closing of lid Light intensity feedback configuration diagram

(1) ... LED luminous body (3) ... bowl-like mirror surface (4) ... LED base (bowl-like)
(5) ... Inclined base plate (6) ... Mirror cap (7) ... Heat radiation part on the back of the main body (9) ... Tempered glass on the top of the lid (10) ... Box-shaped main body (11) ... Lid (14) ... Hinge A ... Lighting body B ... Light source group

Claims (2)

An illuminating body with an inclined base plate on the convex surface having concave and convex portions arranged at intervals , with an even number of vertical convex surfaces arranged between them and an uneven surface that is arranged within the same surface. Forming a box-shaped main body that secures a space where A can be installed, and a flat tempered glass is fitted on the surface of the box-shaped main body, and a lid that opens and closes in a single opening is provided in a watertight manner On the other hand, among the even number of convex surfaces arranged vertically in the box-shaped body , each convex surface for each group of the left and right halves from the center is spaced apart in the vertical direction, and both inward The left and right groups face each other in the same direction, and the inclination angle α of the inclined base plate for inward installation is restricted to a range of 20 to 25 °, respectively. The illuminating body main body A incorporated on the inclined base plate has a height at the bottom of the mirror-like body formed in a bowl shape. An illumination body A with an inclined base plate provided with an output multi-chip LED is disposed and fixed, and an illumination group B is formed by the plurality of illumination body bodies A. LED lamp. The PD detects the light intensity fluctuation of the lamp in the tunnel, and controls the constant current power source based on the light quantity value obtained by feeding back the correction of the light quantity corresponding to the fluctuation through the CPU. The LED lighting device for tunnel illumination according to claim 1, wherein a light amount restoration circuit mechanism for increasing a current to compensate for the accompanying light amount decrease is incorporated.

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